Table 11
Number of Infant Deaths, Live Births and Infant Death Rates
by Selected Characteristics of Newborn and of Mother
for Michigan Residents, 2020
(Continued)

Characteristics of Newborn Infant
Deaths
Live
Births
Infant Death
Rate
Sex of Infant 706 104,166 6.8  ±0.5
  Male 370 53,262 6.9  ±0.7
  Female 334 50,900 6.6  ±0.7
Birthweight 706 104,166 6.8  ±0.5
  1,499 Grams or Less 371 1,573 235.9  ±21.3
  1,500 - 2,499 Grams 101 7,781 13.0  ±2.5
  2,500 Grams or More 233 94,793 2.5  ±0.3
Plurality 706 104,166 6.8  ±0.5
  Single Birth 589 100,427 5.9  ±0.5
  Multiple Birth 109 3,736 29.2  ±5.4
Characteristics of Mother Infant
Deaths
Live
Births
Infant Death
Rate
Age of Mother 706 104,166 6.8  ±0.5
  < 20 46 4,233 10.9  ±3.1
  20 - 29 381 51,412 7.4  ±0.7
  30 - 39 245 45,612 5.4  ±0.7
  40 + 26 2,880 9.0  ±3.5
Marital Status 706 104,166 6.8  ±0.5
  Married 269 60,860 4.4  ±0.5
  Unmarried 429 43,280 9.9  ±0.9
Level of Prenatal Care 706 104,166 6.8  ±0.5
  Adequate 359 71,119 5.0  ±0.5
  Intermediate 195 24,309 8.0  ±1.1
  Inadequate 144 8,733 16.5  ±2.7
Exposure to Tobacco Infant
Deaths
Live
Births
Infant Death
Rate
Smoked During Pregnancy 706 104,166 6.8  ±0.5
  No 553 88,462 6.3  ±0.5
  Yes 153 15,704 9.7  ±1.5
Secondhand Smoke During Pregnancy 706 104,166 6.8  ±0.5
  No 550 89,850 6.1  ±0.5
  Yes 98 10,464 9.4  ±1.8
Smoked or Secondhand Smoke During Pregnancy 706 104,166 6.8  ±0.5
  No 482 81,293 5.9  ±0.5
  Yes 178 19,615 9.1  ±1.3
History of smoking 706 104,166 6.8  ±0.5
  No 535 88,004 6.1  ±0.5
  Yes 154 15,814 9.7  ±1.5


Note: Rates are per 1,000 live births. Adding and subtracting the number shown after the ± symbol from the rate creates a confidence interval indicating that the true rate lies between the lower and upper bounds of this interval with 95% statistical confidence. Records with selected characteristics unknown are included in total only.  Level of prenatal care is according to the Kessner Index which is a classification of prenatal care based on the month of pregnancy in which prenatal care began, the number of prenatal visits and the length of pregnancy (i.e. for shorter pregnancies, fewer prenatal visits constitute adequate care.)
Source: 2020 Michigan Resident Birth-Death Matched File, Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services